After completion of rough grading and prior to the laying of
the foundation course, the subgrade shall be shaped to line and grade
and thoroughly compacted with an approved self-propelled roller weighing
not less than 10 tons. All hollows and depressions which develop under
rolling shall be filled with acceptable granular material and again
rolled, this process to be continued until no depressions develop.
The subgrade shall not be muddy or otherwise unsatisfactory when the
foundation course is laid upon it. Any soft or unstable portions of
the subgrade which develop under the roller shall be completely excavated
and removed from the right-of-way and shall be replaced with acceptable
granular material and the area regraded and compacted as above.
Before fine grading or construction of curbs and sidewalks is
started, all storm and sanitary sewers and all utilities, including
house connections and hydrants, shall have been installed at the locations
shown on the standard details, and all fill and backfill shall have
been thoroughly compacted to the satisfaction of the Town Superintendent
of Highways and the Town Engineer.
The developer shall construct all road intersections in accordance
with Figures 13, 14 and 22 of the standard details.
The developer shall furnish and install a road name sign at
every road intersection made by the roads he constructs in accordance
with Figure 15 of these specifications; names shall be approved by
the Town Highway Superintendent.
Roof and cellar drains shall in no case be allowed to flow onto
the road rights-of-way. With the approval of the Town Superintendent
of Highways and the Town Engineer, in writing, these drains may be
piped to and connected to the nearest catch basin of the road storm
drainage system. Such drains must be installed prior to the start
of final grading of the roads.
Wherever a permanent dead end is allowed on a subdivision road,
a turnaround shall be constructed. This turnaround shall take the
form of a circle as required by the Town Planning Board and shall
be constructed as shown in Figure 20. A temporary type of construction shall be used only when
authorized by the Town Planning Board because of the foreseeable future
extension of the road. Temporary culs-de-sac shall be similar in shape
and construction to permanent units; however, the right-of-way in
excess of that required for the road type will revert back to the
adjoining lots on which the temporary cul-de-sac extends.
When existing streams must be crossed by proposed roads, culvert sizing shall be predicted on the criteria set forth in Chapter
132, Subdivision of Land, or as required by the Town Engineer. Hydraulic computations shall be submitted as part of the plan approval.
All signs, signals, markings and other control devices for maintenance
and protection of traffic shown on approved plans and authorized by
the Town Engineer shall be erected by the developer in accordance
with the New York State Manual of Uniform Traffic Control Devices.